• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
DO NOW - Sewanhaka Central High School District
DO NOW - Sewanhaka Central High School District

... Development of the cell theory • With all of the research and discoveries made through the years, scientists developed an explanation or theory about living things • This was called the cell theory ...
educ.tech - Mackenzie2621
educ.tech - Mackenzie2621

... the individual jobs of these components. ...
Cell Membrane - Fort Bend ISD
Cell Membrane - Fort Bend ISD

... Hypertonic: The solution has a higher concentration of solutes and a lower concentration of water than inside the cell. (High solute; Low water) ...
A Framework for Function
A Framework for Function

... responsible for producing it. They do this by breaking down sugars using oxygen. The breakdown process is known as cellular respiration. 10  Although plants use mitochondria to make ATP as an energy source, these cells also produce their own sugar through unique organelles called chloroplasts. Chlor ...
Mitochondria - Turning on the Powerhouse
Mitochondria - Turning on the Powerhouse

... the nerve cell is to transmit nerve impulses, there will be fewer mitochondria in a nerve cell than in a that needs loads of energy. If the cell feels it is not getting enough energy to survive, more mitochondria can be created. Sometimes they can even grow, move, and combine with other mitochondria ...
cscope Cell Transport And Homeostasis Terms ppt
cscope Cell Transport And Homeostasis Terms ppt

... surrounding a cell that has more dissolved solutes and less water than the cell • This type of solution will cause water to move out of the cell via osmosis, resulting in shrinking of the cell. ...
Chapter 7: Cells and Their Environment
Chapter 7: Cells and Their Environment

... - Signal that hits special area electric charge from within cell - Impulse moves along a nerve cell, current cause gates to open & Na+ moves rapidly into nerve cells ...
Membrane Protein Function & Cellular Transport
Membrane Protein Function & Cellular Transport

... When active transport of one solute indirectly drives transport of another Example Plants commonly use the proton gradient generated by proton pumps to drive transport of nutrients into the cell ...
Cell Wall
Cell Wall

... The Mitochondria structure has three main parts: OUTER MEMBRANE: covers the mitochondria ...
HONORS BIO TRANSPORT TEST NAME (2 points each) MULTIPLE
HONORS BIO TRANSPORT TEST NAME (2 points each) MULTIPLE

... C. the water level will rise equally on the both sides D. the water level will not change on either side ...
Sex and the Simpleton: Evolution of Sex and the Rise of the
Sex and the Simpleton: Evolution of Sex and the Rise of the

... simple process of binary fission The cell makes an identical copy of its genetic material, and each of the two copies ends up in each daughter cell The daughter cells are clones of their parent Critical Question: What are the advantages and disadvantages of this approach ? ...
Cell Transport
Cell Transport

... • 4. Cell membranes have pores (holes) in it a.Selectively permeable: Allows some molecules in and keeps other molecules out b.The structure helps it be selective! ...
Basic Structure of a Cell 1
Basic Structure of a Cell 1

... The cell is the Basic Unit of Life • Cell is the smallest unit of living organisms • Unicellular organisms are made of one cell only • The cells of multicellular organisms are ...
Fig I
Fig I

... Increased tendancy to respiratory tract infections due to poor tracheal ciliary function, female infertility due to lack of fallopian tube ciliary function and male sterility due to lack of spermatozoal flagellar function. In about 50% of patients with this condition, a less easily understandable ac ...
Cell Organelles PPT - fcbrowser . aisd .net
Cell Organelles PPT - fcbrowser . aisd .net

... This occurs when the solute concentration is the same inside and outside of the cell ...
Chapter 02
Chapter 02

... Endocytosis and the Endosomal System of Vesicles The process whereby a cell ingests macromolecules, particulate matter, and other substances from the extracellular space is referred to as endocytosis. The endocytosed material is engulfed in a vesicle appropriate for its volume. If the vesicle is la ...
Cytokinesis Cytokinesis Cytokinesis Cytokinesis
Cytokinesis Cytokinesis Cytokinesis Cytokinesis

... accumulation/activation ...
File - Callis Science
File - Callis Science

... High concentration ...
Notes – Limits to Cell Growth and the Cell Cycle There are two main
Notes – Limits to Cell Growth and the Cell Cycle There are two main

... ___________ products leave in the same way The relationship between a cell’s ______________ and its _________________ _______ is the key to understanding why cells must divide as they grow! ...
Which organelle breaks down organelles that are no longer useful?
Which organelle breaks down organelles that are no longer useful?

... Microtubules and microfilaments ...
Organelles - Brookville Local Schools
Organelles - Brookville Local Schools

... Mitochondria are in both cells!! animal cells plant cells ...
Cells
Cells

... The process by which cells use oxygen to break apart glucose and oxygen to produce energy for the cell (in the form of ATP). Glucose + Oxygen  Carbon Dioxide + Water + ATP C6H12O6 + 6O2  6CO2 + 6H2O + ATP The process by which plants, algae and some bacteria use sunlight to convert water and carbon ...
isotonic
isotonic

... If the solution in a cell is 2% solute, it would be 98% water. That cell is placed in a solution that was 5% solute and therefore 95% water.  Is the solution that the cell is placed in hypotonic, isotonic, or hypertonic?  Is the cell going to gain or lose water?  If the cell is an animal cell, wh ...
STRUCTURE AND FUNCTION OF THE CELL
STRUCTURE AND FUNCTION OF THE CELL

... entire cell membrane. These are exposed to both the inside of the cell & the exterior environment. D. Other integral proteins extend only to the inside or only to the exterior surface. E. Cell membrane proteins help move materials into & out of the cell. F. Some integral proteins called channel prot ...
Diffusion & Osmosis
Diffusion & Osmosis

... Lesser concentration to greater concentration Use of energy (against concentration gradient) Example: Sodium-Potassium pump; Endo- & Exocytosis ...
< 1 ... 138 139 140 141 142 143 144 145 146 ... 393 >

Cytoplasmic streaming



Cytoplasmic streaming, also called protoplasmic streaming and cyclosis, is the directed flow of cytosol (the liquid component of the cytoplasm) and organelles around large fungal and plant cells through the mediation of actin. This movement aids in the delivery of organelles, nutrients, metabolites, genetic information, and other materials to all parts of the cell. Cytoplasmic streaming occurs along actin filaments in the cytoskeleton of the cell.Cytoplasmic streaming was first discovered in the 1830s. The scientific breakthrough assisted scientists in developing an understanding of the different roles of cells and how they function as the basic operating systems of life.This process occurs through the operation of motor proteins called myosins.These proteins use energy of adenosine triphosphate (ATP) to act as a molecular motor, which slides along actin filaments. This works in a manner that tows the organelles and other cytoplasmic contents in the same direction. Myosin proteins consist of two conjoined proteins. If one protein remains attached to the substrate, the substance acted upon by the protein, such as a microfilament, has the ability to move organelles through the cytoplasm.The green alga genus Chara and other genera in the Division Charophyta, such as Coleochaete, are thought to be the closest relatives of land plants. These haploid organisms contain some of the largest plant cells on earth, a single cell of which can reach up to 10 cm in length. The large size of these cells demands an efficient means to distribute resources, which is enabled via cytoplasmic streaming.Cytoplasmic streaming is strongly dependent upon intracellular pH and temperature. It has been observed that the effect of temperature on cytoplasmic streaming created linear variance and dependence at different high temperatures in comparison to low temperatures. This process is complicated, with temperature alterations in the system increasing its efficiency, with other factors such as the transport of ions across the membrane being simultaneously affected. This is due to cells homeostasis depending upon active transport which may be affected at some critical temperatures.In plant cells, chloroplasts may be moved around with the stream, possibly to a position of optimum light absorption for photosynthesis. The rate of motion is usually affected by light exposure, temperature, and pH levels.In reference to pH, because actin and myosin are both proteins, strong dependence on pH is expected. The optimal pH at which cytoplasmic streaming is highest, is achieved at neutral pH and decreases at both low and high pH.The flow of cytoplasm may be stopped by:Adding Lugol's iodine solutionAdding Cytochalasin D (dissolved in dimethyl sulfoxide)↑ ↑ ↑ ↑ ↑ ↑
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report